<template>
    <div class="app-container">
        <el-row :gutter="10">
            <el-col :span="24" :xs="24">
                <!-- 数据筛选表单 -->
                <el-form ref="queryForm" :model="queryParams" :inline="true" label-width="100px">
                    <el-form-item label="菜单名" prop="menuName">
                        <el-input v-model="queryParams.menuName" placeholder="请输入菜单名" clearable size="small"
                            @keyup.enter="handleQuery" />
                    </el-form-item>

                    <el-form-item label="状态" prop="status">
                        <el-select v-model="queryParams.status" size="small" placeholder="请选择">
                            <el-option v-for="item in statusOptions" :key="item.value" :label="item.label"
                                :value="item.value" />
                        </el-select>
                    </el-form-item>

                    <el-form-item>
                        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">
                            搜索
                        </el-button>
                        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">
                            重置
                        </el-button>
                    </el-form-item>
                </el-form>

                <!-- 数据操作按钮 -->
                <el-row :gutter="20">
                    <el-col :span="3">
                        <el-button type="primary" icon="el-icon-plus" size="small" @click="handleAdd">
                            新增菜单
                        </el-button>
                    </el-col>
                </el-row>

                <!-- 数据表格 -->
                <el-table v-loading="loading" :data="menuList" style="width: 100%; margin-bottom: 20px;"
                    row-key="menuId" :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
                    default-expand-all>
                    <el-table-column label="菜单名称" align="center" prop="menuName" />
                    <el-table-column label="菜单ID" align="center" prop="menuId" width="100" />
                    <el-table-column label="路径" align="center" prop="path" />
                    <el-table-column label="组件" align="center" prop="component" />

                    <el-table-column label="类型" align="center" prop="menuType" width="100">
                        <template #default="scope">
                            {{ menuTypeFormat(scope.row.menuType) }}
                        </template>
                    </el-table-column>

                    <el-table-column label="状态" align="center" width="100">
                        <template #default="scope">
                            <el-tag v-if="scope.row.status === '0'" size="small" type="success">正常</el-tag>
                            <el-tag v-else-if="scope.row.status === '1'" size="small" type="danger">禁用</el-tag>
                        </template>
                    </el-table-column>

                    <el-table-column label="操作" align="center" width="200" class-name="small-padding fixed-width">
                        <template #default="scope">
                            <el-button size="small" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)">
                                修改
                            </el-button>
                            <el-button size="small" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)">
                                删除
                            </el-button>
                        </template>
                    </el-table-column>
                </el-table>
            </el-col>
        </el-row>

        <!-- 添加/修改对话框 -->
        <el-dialog :title="title" v-model="open" width="500px" append-to-body>
            <el-form ref="form" :model="form" :rules="rules" label-width="120px">
                <el-form-item label="父级菜单">
                    <el-tree ref="tree" :data="menuTree" :props="defaultProps" node-key="menuId" highlight-current
                        @node-click="handleNodeClick" />
                </el-form-item>

                <el-form-item label="父菜单ID" prop="parentId">
                    <el-input v-model="form.parentId" disabled />
                </el-form-item>

                <el-form-item label="菜单名称" prop="menuName">
                    <el-input v-model="form.menuName" placeholder="请输入菜单名" />
                </el-form-item>

                <el-form-item label="菜单类别" prop="menuType">
                    <el-select v-model="form.menuType" placeholder="请选择">
                        <el-option v-for="item in menuTypeOptions" :key="item.menuType" :label="item.label"
                            :value="item.menuType" />
                    </el-select>
                </el-form-item>

                <el-form-item label="路由路径" prop="path">
                    <el-input v-model="form.path" placeholder="请输入路由路径" />
                </el-form-item>

                <el-form-item label="组件路径" prop="component">
                    <el-input v-model="form.component" placeholder="请输入组件路径" />
                </el-form-item>
            </el-form>

            <template #footer>
                <div class="dialog-footer">
                    <el-button type="primary" @click="submitForm">确 定</el-button>
                    <el-button @click="cancel">取 消</el-button>
                </div>
            </template>
        </el-dialog>
    </div>
</template>

<script>
/** 导入axios Api */
import { listMenu, treeMenu, getMenu, addMenu, updateMenu, deleteMenu } from '@/api/menu'
export default {
    name: 'Menu',
    data() {
        return {
            // 状态类型
            statusOptions: [
                {
                    value: '0',
                    label: '正常'
                },
                {
                    value: '1',
                    label: '禁用'
                }
            ],
            // 遮罩层
            loading: false,
            // Menu表格数据
            menuList: [],
            // 对话框目录+菜单树
            menuTree: [],
            // 弹出层标题
            title: '',
            // 是否显示弹出层
            open: false,
            // 数据查询参数
            queryParams: {
                menuName: null,
                status: null
            },
            // 数据编辑表单
            form: {},
            // 表单数据校验规则
            rules: {
                menuName: [
                    { required: true, message: '菜单名不能为空', trigger: 'blur' }
                ],
                menuType: [
                    { required: true, message: '菜单类别不能为空', trigger: 'blur' }
                ]
            },
            menuTypeOptions: [{
                menuType: 'M',
                label: '目录'
            },
            {
                menuType: 'C',
                label: '菜单'
            },
            {
                menuType: 'F',
                label: '方法'
            }],
            defaultProps: {
                children: 'children',
                id: 'menuId',
                label: 'menuName'
            }
        }
    },
    created() {
        this.getList()
    },
    methods: {
        /** 查询Menu数据列表 */
        getList() {
            this.loading = true
            listMenu(this.queryParams).then((response) => {
                this.menuList = response.data
                this.loading = false
            })
        },
        /** 得到对话框父级菜单树 */
        getTree() {
            this.loading = true
            treeMenu().then((response) => {
                this.menuTree = response.data
                this.loading = false
            })
        },
        /** table菜单类型格式化 */
        menuTypeFormat(row) {
            let type = row.menuType
            switch (type) {
                case 'M':
                    type = '目录'
                    break
                case 'C':
                    type = '菜单'
                    break
                case 'F':
                    type = '按钮'
                    break
            }
            return type
        },
        /** 数据编辑对话框取消按钮 */
        cancel() {
            this.open = false
            this.resetForm()
        },

        /** 数据编辑表单清空 */
        resetForm() {
            this.form = {
                menuId: null,
                menuName: null,
                path: null,
                component: null,
                parentId: 0,
                menuType: null,
                status: '0'
            }
            // 得到父级菜单树
            this.getTree()
        },

        /** 数据筛选搜索按钮 */
        handleQuery() {
            this.resetQueryParams()
            this.getList()
            this.$message.success('查询成功')
        },

        /** 数据筛选重置按钮 */
        resetQuery() {
            this.queryParams = {
                menuName: null,
                status: null
            }
            this.getList()
        },

        /** 新增按钮操作 */
        handleAdd() {
            this.resetForm()
            this.open = true
            this.title = '添加Menu'
        },

        /** 修改按钮操作 */
        handleUpdate(row) {
            this.resetForm()
            getMenu(row.menuId).then((response) => {
                this.form = response.data
                console.log(this.form)
                this.open = true
                this.title = '修改Menu'
            })
        },

        /** 数据提交按钮 */
        submitForm: function () {
            this.$refs['form'].validate((valid) => {
                if (valid) {
                    if (this.form.menuId === null) {
                        addMenu(this.form).then((response) => {
                            this.$message.success(response.msg)
                            this.open = false
                            this.title = ''
                            this.getList()
                        })
                    } else {
                        updateMenu(this.form).then((response) => {
                            this.$message.success(response.msg)
                            this.open = false
                            this.title = ''
                            this.getList()
                        })
                    }
                }
            })
        },

        /** 删除按钮操作 */
        handleDelete(row) {
            this.$confirm(
                '是否确认删除名称为"' + row.menuName + '"的数据项?', '警告', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            })
                .then(function () {
                    return deleteMenu(row.menuId)
                })
                .then(() => {
                    this.getList()
                    this.$message.success('删除成功')
                })
                .catch(() => { })
        },
        /** 选中上级菜单 */
        handleNodeClick(data) {
            this.form.parentId = data.menuId
        }
    }
}
</script>
